Gas lighting or extinguishing apparatus.



Patented Dec. 5, |8919.

No. 638,345y

y G. o. LENTscHAT. GAS LIGHTING 0R EXTINGUISHING APPARATUS.

ion fixed Apr. 21,-1898.)

(App Iicat (No Model.)

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GEORG OTTO LENTSCHAT, OF COLOGNE, GERMANY, ASSIGNOR TO KLNER WASSERMESSER WERK, GESELLSCHAFT MIT BESCHRA'NKTER HAFTUNG, OF SAME PLACE.

GAS LIGHTING OR EXTINGUISHING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 638,345, dated December 5, 1899. Application lled April 21, 1898. Serial No. 678,424. (No model.)

To 1f/ZZ whom t 7am/y concern: View of the same, showingadifferent arrange- Be itknown that LGEORGOTTO LENTSGHAT, ment of the holes. Fig. shows the plug P a subject of the Emperor of Germany, residseen from below and also drawn on the ening at Cologne-on-the-Rhine, in the Kingdom larged scale.

5 of Prussia and German Empire, have invent- The same letters of reference designate the 55 ed certain new and useful Improvements in same parts in all the iigures.

Apparatus for Controlling Gas-Lamps from A is the box or case containing the appaa Distance, of which the following is a speciratus for controlling the admission of gas.

iication. S is the stud onto which the burner is 1o This invention relates to an apparatus for screwed, and S2 the stud by which the caseAis 6o lighting and extinguishing gas-lamps from a screwed onto the conduit furnishing the gas. distance. E is an electromagnet which when excited In gas-lighted streets it is usual to eXtinattracts the armature B and by means of the guish a part of the lamps after a certain hour pawl I-I, fastened to the latter, rotates the of the night. disk D, so as to bring either the holes h h, 65

Myinvention consists in an electrically-conbored in the latter, into superposition with trolled device fitted to every lamp by which a the holes provided in the plug P or else the predetermined group of lamps can be put out spaces remaining between the holes. By this while the others remain burning, or else, also, means the disk D can be given any desired zo all lamps can be extinguished or relighted at position by making and breakingthe current 7o will,though only one wire connects the so-conexciting the electromagnet E. The number trolled lamps. of possible positions of the disk D is, how- In a former application for Letters Patent ever, naturally limited in every special case 4 filed by me April 9, 1898,' Serial No. 677,026, by the number of teeth cut in the circumferand also in another earlier application, iiled ence of the disk, and thusitis brought about 75 by Knapp April 2l, 1898, Serial No. 678,364, that the actual positions the disk will asan apparatus has been described by which sume will always exactly correspond to the the lighting and extinguishing of agas-lamp position of the holes 7L h in the plug P. can be controlled either electrically or by (See Fig. 5.) If the number of holes hh promeans of a pneumatic apparatus from any vided in the disk were equal to half the nurn- 8o desired distance. The main feature of these ber of teeth cut in its circumference, at every devices consists in a disk which is provided make and break of the current the lamp with a number of concentrically-bored holes would either be lighted or extinguished. If, corresponding to other holes bored in a plug however, the number of holes is only equal 3 5 closing the supply of gas to the burner, which to one-third of the number of teeth, two teeth 85 disk is rotated by the action of an electrowill have to be passed over before the lamp will magnet or a pneumatic device controlled from be lighted. This arrangement is shown in a distance, and thereby closes or opens the Fig. 3. Fig.4shows another modification, in

conduit leading to the burner. which the number of holes h h in the disk is 4o My present invention consists in a certain astwo to three to the number of teeth cut in 9o arrangement of the holes in said disk. its circumference. In this case two teeth Of the accompanying drawings, Figure l is will have to be passed over before the lamp a vertical section through the gas-tight box is extinguished. containing the apparatus for controlling the The operation of my invention is as foladmission of gas to the burner and described lows: If a street or apublic place is lighted by 95 more fullyin my above-named former specitia number of lamps, a certain predetermined cations. Fig.2isahorizontalsectionthrough set of which is intended to burn all night, the same. Fig. 3 is an enlarged illustration While another set is intended to be extinof the disk controlling the admission of gas guished after midnight or atanyothersuitable 5o to the burner; and Fig. l is another enlarged hour, the first set of lamps is provided with loo disks made according to Fig. 4, while the second set is iitted with disks made according to Fig. 3. The electromagnets E Eef all the lamps are so connected as to be controlled by a single Wire, for instance, all in one series. Then by simply making and breaking the current at any point of the circuit one can bring the Various disks into such relative positions that either all lamps are lighted or only the group that is intended to burn all night, or else all are extinguished. In order to more fully explain how this result is brought about, corresponding teeth in the differently-arranged disks, Figs. 3 and 4, and a corresponding point on the plug P, Fig. 5, are correspondingly numbered. Thus it Will be seen that when all the disks have been once so adjusted as to bring all the numbers l in the disks and the points l in the plugs belonging to them into superposition all lamps will be extinguished. By one make and break of the current all disks Will be equally moved 'forward one tooth or, With other Words, all teeth No. 2 on the disks will be broughtinto superposition With the points l on the plug. Consequently after one make and break all lamps will be lighted. After a second make and break allnumbers 3 Will be brought into superposition with l on the plug, and consequently all lamps provided with disks arranged according to Fig. 4 will remain burning, while those that are provided With disks arranged according to Fig. 3 Will be extinguished. Again, a third make and break of the current will bring all lamps back into the original condition-i1 e., they will be all put out, and then the same operation can be recommeneed.

I Wish it to be understood that the arrangement shown in Figs. 3, 4, and 5 is only shown by Way of examples, and that it could be indefinitely Varied by further varying the ratio of the numbers of holes h h to the number of teeth Without in principle altering the nature of my invention.

Having now particularly described and as certained the nature of my said invention, I declare that what I claim is- 1. The combination in a series of gas-lamps,

' each having a toothed gas controlling disk With means for simultaneously rotating the disks in all of said lamps, and perforated plugs coactin g with said disks, said disks hav ing openings therein arranged ina predeter mined relation to their teeth, the openings in the several disks diering in their relation to the teeth of said disks, substantially as described.

2. In combination, a series of lamps, each having a plug with perforations therein for the passage of gas, disks in each lamp, said disks each having a corresponding number of teeth, means for simultaneously rotating all of said disks step by step, each of said disks having openings therein designed to aline With the perforations in its adjacent plu g, the openings in each disk being arranged in a different relation to the teeth of said disks, substantially as described.

3. In combination, a series of lamps, each having a plug with perforations therein for the passage of gas, disks in each lamp, said disks each having a corresponding number of teeth, means for simultaneously rotating all of said disks step by step, each of said disks having openings therein designed to aline With the perforations in its adjacent plugs, the openings in each disk being arranged in a different relation to the teeth thereof, those in one disk being arranged in the ratio to the teeth thereof as one to three and in other disks as two to three, substantially as described.

In Witness whereof I have hereunto set my hand in presence of two Witnesses.

GEORG OTTO LENTSOHAT.

Witnesses:

P. WIGHT NEUMAN, LINA FELDMANN. 

